| 摘要 |
PCT No. PCT/DE94/01489 Sec. 371 Date Jun. 14, 1996 Sec. 102(e) Date Jun. 14, 1996 PCT Filed Dec. 14, 1994 PCT Pub. No. WO95/17016 PCT Pub. Date Jun. 22, 1995A silicon semiconductor wafer is constructed from three mutually inclined monocrystalline regions (6, 7, 8) which form three circular sectors of the wafer whose interfaces and boundary lines consequently extend radially with respect to one another and form angles (W6, W7, W8) of less than 180 DEG with one another. In this arrangement, two of the interfaces are first-order twin grain boundaries between two <111> crystal planes in each case. The silicon semiconductor wafer is used to produce inexpensive high-performance solar cells.
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